Recent content by chrismcr

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    What is the acceleration of the center of mass of the rolling hollow sphere?

    A hollow spherical shell with mass 1.50kg rolls without slipping down a slope that makes an angle of 40.0degree angle with the horizontal. -Find the magnitude of the acceleration of the center of mass of the spherical shell I am really confused on how to go about this problem. I know it has...
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    Find the Diameter of an Iron Disk for Kinetic Energy Storage of 14.6

    im sorry..here are the units. 7800kg/m^3 14.6MJ 12.4cm 91RPM The energy of a rotating object would have to be.. =.5mv^2+.5Iw^2
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    Find the Diameter of an Iron Disk for Kinetic Energy Storage of 14.6

    Diameter of disk? Question: Consider a flywheel made of iron, with a density of 7800 , in the shape of a uniform disk with a thickness of 12.4 . What would the diameter of such a disk need to be if it is to store an amount of kinetic energy of 14.6 when spinning at an angular velocity of 91.0...
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